Photographs Sources	American Institute of Physics Emilio Segré Visual Archives - courtesy of Otto Hahn and Lawrence Badash, Argonne National Laboratory, Archive Photos, Bettmann Archives, Department of Defense, Department of Energy, Earth Imaging, Roger Goldengay, Los Alamos National Laboratory, Photo from ”March of Time” - courtesy of SFM Entertainment and Time Warner, inc.

Video Sources	CASCOM International, inc., Defense Nuclear Agency, Los Alamos National Laboratory, The National Archives, NBC News Archives, The WPA Film Library